Bayern Munich could find themselves in hot water after some of their supporters unfurled a homophobic banner before last night's Champions League clash with Arsenal.

The banner had 'Gay Gunners' written on it as well as a less than flattering caricature of Arsenal midfielder Mesut Ozil in front of the club's signature cannon.

Although the banner was reasonably small, Bayern could still face a heavy fine from Uefa if previous incidents have set a precedent.

European football's governing body have confirmed they are looking into the matter. Chief of press Pedro Pinto wrote on Twitter: "There will be news from Uefa on the matter this afternoon."

Celtic were slapped with a £42,000 fine after their fans unveiled a huge display during their group game with AC Milan.

The 'illicit banner' featured images of William Wallace and Bobby Sands as well as the message: "The terrorist or the dreamer? The savage or the brave? Depends whose vote you are trying to catch or whose face you’re trying to save."